Carbohydrates, all coming from the process of photosynthesis, represent the major ... out many functions in all living organisms and are the major energy source in a ... number of oxydrilic groups (so polyhydroxy aldehydes or ketones as well).
"Pacemaker" is the one choice among the following choices given in the question that is the treatment that can also regulate heart rhythmsthat has replaced drugs in some cases. The correct option among all the options that are given in the question is the first option or option "A". I hope it helps you.
A doctor that studies cardiology knows a lot of the hearts aorta, atria, valves, and ventricles.
let me know if you have any other questions
:)
I would say all of the above, because all of those seem to be true
-hope it helps :3
